4x4 16-Key Tactile Matrix Keypad - Hex Input for Arduino/AVR

The HKD 4x4 16-Key Tact Switch Keypad is a compact and reliable matrix-style keypad featuring a standard 4x4 layout, ideal for numeric and function-based input in embedded and microcontroller projects. Each of the 16 tactile buttons is clearly labeled with x0-9, , #, and F1-F4, providing a full hexadecimal interface for menu systems, password entry, and control panels.

Designed for ease of integration with platforms like Arduino, AVR, PIC, and more, this keypad uses a matrix connection method (8-pin interface) that minimizes I/O usage while allowing efficient key scanning.

The durable tactile switches offer a satisfying click and quick response, making it ideal for both prototyping and permanent installations. Its small size (approx. 42mm x 42mm) makes it perfect for handheld devices and compact control enclosures.

Key Features:

Layout: 4x4 matrix (16 tactile switches)

Keys: 0-9, x, #, F1-F4 (hex-style labeling)

Connection: 8-pin matrix interface (row/column)

Compatibility: Arduino, AVR, PIC, Raspberry Pi, and other microcontrollers

Switch Type: Tactile (momentary push-button)

Compact Size: Approx. 42mm x 42mm

Use Cases: Keypad-controlled access systems, robotics interfaces, user input panels, menu navigation, calculator projects

This keypad is an essential input device for anyone building interactive embedded systems, offering a simple and efficient solution for numeric and functional input.

What's in the box
x1 4x4 16-Key Tactile Matrix Keypad - Hex Input for Arduino/AVR